PMC:7463108 / 1928-1953
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T13","span":{"begin":2,"end":10},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"\n\nOverview\n\nThe Opioid Cr"}